Eosinophils are tissue-based granulocytes found in the mucosa of the respiratory and gastrointestinal tracts and in the adjacent skin. Low eosinophils can occur in a variety of situations, such as infection, prolonged use of adrenocorticotropic hormones, typhoid fever, or stress, and therefore are not clinically significant. If eosinophils are consistently low, the condition is usually serious and requires prompt medical attention. Patients in this category usually do not require special treatment if they do not have symptoms. Pay attention to the daily vitamin supplementation, you can eat a variety of foods rich in vitamins, such as millet, oats, buckwheat, cabbage, spinach, cucumbers, oranges, bananas, grapes, etc.. You can also eat fish, eggs, poultry, fungus and other foods that are high in iron, zinc and other trace elements. In contrast to low eosinophils, patients should pay more attention to whether eosinophils are increasing. An increase in eosinophils usually indicates allergic diseases, parasitic diseases, specific organ diseases, blood diseases, or even malignant tumors. It is recommended that such patients visit a hospital in a timely manner, undergo relevant examinations to clarify the cause, and actively pursue targeted treatment to avoid continued aggravation of the condition.